MAYEVSKY BRASS VALVES FOR AIR DISCHARGE

The appearance of an air pocket

A cold battery is one of the signs that the heating system is clogged with an air lock.

gurgling sounds are sometimes heard in pipes and radiators;
batteries either do not heat at all, or only heat up to half;
Some rooms are hot, while others are not warm.

This means that the accumulated air is to blame for everything, and how to release it from the heating system must be decided in accordance with exactly where it has accumulated. Air bubbles always accumulate in the upper part of the heating system, therefore, radiators in rooms on the top floor most often cool down. To find the location of the air lock, you need to consistently feel the supply pipeline and all batteries, checking the degree of their heating

It is also advised to tap the pipes with a hammer and determine by the sound where the void has arisen, but this must be done carefully so as not to damage the paint layer on the pipes.

As a result, having found a problematic place, it is already possible to choose a method of how to bleed air from a heating radiator or, if necessary, from a pipeline.

The air lock not only interferes with the circulation of the coolant, but provokes corrosion of metal pipes. The presence of air in the system also negatively affects the operation of the circulation pump.

Where does air come from in the system?

The reasons for the formation of an air lock can be both natural and related to improper system design and poor-quality installation.

Naturally occurring causes:

when the coolant is heated, the air dissolved in the liquid is released, it rises up and forms a plug;
gas bubbles appear in the process of interaction of a hot coolant with certain types of metals (in particular, aluminum);
due to evaporation, the liquid level in the open expansion tank drops below a critical value;
the air does not have time to completely exit the pipes and batteries if the system is too quickly filled with water with a complex configuration.

It is important to know how to drain the heating system if necessary and then refill it so that no air remains in the pipelines and radiators.

During the installation of the radiator, you need to control the angle of its slope

In addition to natural causes, the appearance of air congestion also leads to:

incorrect layout of horizontal pipes and installation of radiators;
pressure drops in the feed water supply;
poorly sealed connections;
deterioration of old pipelines;
expansion tank failure.

When during the operation of the heating system it turns out that it was originally designed incorrectly, it will have to be redone. But in order to urgently restore the heat supply, you need to decide how to bleed air from the heating system.

—

CAUTION 1

ÐºÐ¾Ð±Ð½Ð¾-ÑÐ¿ÑÐºÐ½ÑÐµ ÐºÑÐ°Ð½Ñ Ñð ñð¶ð ° Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð £ Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð μl ÐµÑÐ²ÑÐ°ÑÐ°Ñ Ð¸ ÑÐ¾ÑÑÐ´Ð°Ñ. ÐÐ° ÑÐ¸Ñ. 235 Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð ² Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð ñð¶ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð ñð¶ Locking. Ð ÐμÐðÐððÐ²Ðð¸Ð½Ð½ÐðÐðÐðÐ½Ð½ÐðÐ °ÐðÐðÐ²Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð¾
a

ÐÑÐ°Ð½ÑÐ¿ÑÐ¾Ð±Ð½ÑÐµ Ð° - ÑÐ¸Ð¿ I. Ð± - ÑÐ¸Ð¿ II. Ðµ - ÑÐ¸Ð¿ III.
a

ÐºÐ¾Ð±Ð½Ð¾-ÑÐ¿ÑÐºÐ½ÑÐµ ÐºÑÐ°Ð½Ñ Dy 6, 10, 15, 20 Rb.
a

ÐºÐ¾Ð±Ð½Ð¾-ÑÐ¿ÑÐºÐ½ÑÐµ ÐºÑÐ°Ð½Ñ Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð ° Ð Ð Ð ¸ Ð´Ð»Ñ Ð´ÑÑÐ³Ð¸Ñ Ð¿Ð¾Ð´Ð¾Ð±Ð½ÑÑ ÑÐµÐ»ÐµÐ¹.
a

ÐºÐ¾Ð±Ð½Ð¾-ÑÐ¿ÑÐºÐ½ÑÐµ ÐºÑÐ°Ð½Ñ Ð¾ÑÐ½Ð¾ÑÑÑÑÑ Ðº ÐºÑÐ ° Ð½Ð ° Ð¼ ÑÐ ° Ð »ÑÐ½Ð¸ÐºÐ¾Ð²ÑÐ¼, Ð¸Ñ Ð¿ÑÐ¸Ð¼ÐμÐ½ÑÑÑ Ð'Ð» Ñ ÐºÐ¾Ð½ÑÑÐ¾Ð »Ñ ÑÑÐ¾Ð²Ð½Ñ Ð²Ð¾Ð'Ñ Ð² ÑÐμÐ · ÐμÑÐ²ÑÐ ° ÑÐ ° Ñ Ð¸ ÐºÐ¾ÑÐ» Ð ° Ñ . Ð · Ð Ð Ð Ð Ð Ð Ð Ð Ð ° Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð ° Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð ¢ Ð Ð Ð Ð Ð ñ Ññððð7¼ (ñð¸ñññ i77, Ð °), Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð ñ ñ i i Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð ¿ Ðμð ðμl (ñð¸ñ i i Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð¾ Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð¾ Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð¾ ° Ð ²Ð ÐμÐðððÐ Ð ÐμÐ Ð Ð Ð Ð Ð ÐμÐ Ð Ð Ð Ð Ð Ðμ Ð Ð Ð Ð Ðμð½Ð Ð Ð Ð Ð Ð Ðμ
a

Ð¡Ð¾ÑÑÐ°Ð¼ÐµÐ½Ñ Ð±ÐµÑÑÐ¾Ð²Ð½ÑÑÑÑÐ±.
a

ÐºÐ°ÑÐµÑÑÐ²Ðµ ÐºÐ¾Ð½ÑÑÐ¾Ð»ÑÐ½Ð¾Ð¹ Ð°ÑÐ¼Ð°ÑÑÑÑ ÑÐ»ÑÐ¶Ð°Ñ Ð¿ÑÐ¾Ð±Ð½Ð¾-ÑÐ¿ÑÑÐºÐ½ÑÐµ ÐºÑÐ°Ð½Ñ Ð¸ ÑÐºÐ°Ð·Ð°ÑÐµÐ»Ð¸ ÑÑÐ¾Ð²Ð½Ñ. ROAKERS PLAYERS POINTERNOW RUMEN PLAYER Ð Ð Ð¾ Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð Ð ÑÐμÑÑÑ Ð½Ð ° ÑÐ »Ð ° Ð½ÑÐμÐ²ÑÑ, Ð¼ÑÑÑÐ¾Ð²ÑÑ, ÑÐ ° Ð¿ÐºÐ¾Ð²ÑÑ Ð¸ Ñ ÐºÐ¾Ð½ÑÐ ° Ð¼Ð¸ Ð¿Ð¾Ð' Ð¿ÑÐ¸Ð²Ð ° ÑÐºÑ. ROOM ROOM
a

Air faucets and radiator set

Almost all modern radiators provide for the possibility of installing manual cranes Mayevsky for air release. Some manufacturers even complete their products with them. Optionally, instead of a manual air vent, you can also put an automatic one, but in practice it does not look very presentable.

Recently, the laying of heating mains below the floor level and the use of radiators with a bottom connection have become increasingly popular. Then a small gap remains between the battery and the floor, where it is not always possible to place any fittings. In this case, there is a special connection headset with built-in taps, shown in the picture (left):

On the right is a headset for the lower connection of a conventional radiator with side plugs, it also has valves plus the possibility of attaching a thermal head. Such solutions look very aesthetically pleasing, but will require maximum financial costs. More information about the headset is shown in the video:

Installation of ball valves on batteries

A conventional ball valve is only designed to switch to 2 positions: "open" and "closed".It is impossible to regulate the flow of coolant through the radiator with it, only to block it. The figure below shows a simple connection diagram for a heater with this type of fitting:

The proposed scheme is the best option for an unregulated connection of a radiator to central heating risers in an apartment. You still don’t have to balance it, and it’s pointless to install a thermostatic valve because of the poor quality of the coolant. Instead of a ball valve at the outlet, the installation of a so-called shut-off valve is also practiced, its difference is only in appearance.

Depending on the layout of appliances and heating pipes, you can choose an angle valve for a radiator with or without a decorative coating.

Also, when choosing a product, it is recommended to pay attention to the working pressure indicated on the body of the product or in its passport. It must correspond to the pressure in the heating network of an apartment building

Advice. Choose good thick-walled brass taps for mounting on a radiator and a connection with an American union nut. It will allow you to quickly disconnect the eyeliners without rotating the elements. On a single-pipe riser, be sure to install a bypass with a slight offset to the side of the main pipe.

Use of valves with thermal heads

These are the best taps that can only be put on radiators in the heating system of a private house. Adjusted to a certain air temperature, the thermal head acts on the valve stem, forcing it to open or close its flow area. Thus, there is an automatic quantitative regulation of the coolant passing through the heater.

The thermostatic valve is installed on the supply line to the battery, and a balancing valve is placed on the return line. It is a mistake to assume that the system will be automatically balanced by thermal heads; valves are needed in any case. The installation of conventional ball valves instead of them is allowed for centralized heating or in systems with a passing movement of the coolant (Tichelmann loop). But it is unacceptable to regulate the coolant flow using a ball valve, and it will not work.

Advice. Most models of thermal valves have a mode of mechanical blocking of the flow section. If you got products without such a mode, then you will have to install an additional cutter to service the battery, as shown in the diagram: